Every few months, the Internet eats itself over some kind of viral riddle or illusion, each more infuriating than the last. And so, like clockwork, this maddening math problem has gone viral, ...

You probably think you're smarter than a middle schooler. If you want to know for sure, try your hand at this basic math problem. It's harder than it looks — even if you think you have a solid grasp ...

PEMDAS has plagued many in elementary school math classes, but how many Americans remember how to use the acronym to solve problems? A simple sixth-grade math equation went viral on X for stumping ...